Sano Densetsu Co., Ltd., operating in Niigata Prefecture, was involved in a construction project in Yamanashi Prefecture where a worker was injured on March 16, 2021, and was unable to work for more than four days. The company failed to submit the required Worker Injury and Illness Report to the Kofu Labor Standards Inspection Office. As a result, both the company and its representative, Yukio Hoshi, were penalized with fines for violations of the Industrial Safety and Health Act, with the penalties confirmed on January 23, 2024. This incident constitutes a violation under Article 28, Paragraph 1, Item 3 of the Construction Business Act. The Niigata Prefecture authorities issued an instruction on March 7, 2024, requiring the company to take measures to prevent recurrence, including promptly informing employees about the violation, strengthening safety management at worksites, complying with relevant laws, and creating ongoing safety education and guidance plans. The company’s main business involves earth and steel construction, and its permit number is Niigata Prefecture Governor Permit (General-1) No. 17579.